Diacodexis secans

via iDigBio · via iDigBio. May be a photograph of a specimen, or an artist’s reconstruction — an interpretation of a skeleton, since colour and soft tissue are almost never preserved.
On record
Recorded, not inferred- Sits inside
- DiacodexisPBDB
- Diet
- herbivorePBDB, for Diacodexis
- Life habit
- ground dwellingPBDB, for Diacodexis
- Motility
- actively mobilePBDB, for Osteichthyes
- Environment
- terrestrialPBDB, for Artiodactyla
Time the record covers
At most 11 million years on record.
Every occurrence read is dated to somewhere between 56 Mya and 45.9 Mya, and nothing in the dating separates them, so that window is what the record shows rather than a span.
42 occurrences of Diacodexis secans on record, most of them in the Eocene. Bar height is expected occurrences, not a count: each fossil is spread across the span it is dated to, so a tall narrow bar means tight dating and a low wide one means loose.
When
42 occurrences- Eocene100%
These are dates about fossils, not the animal: the record can only begin after it arose and end before it died out, so either end may reach further. Shares are expected occurrences: a fossil dated to a span is counted partly in each period it straddles. More on what this infers.
Found in
6 formations
- Wind River Formation23
- Wasatch Formation10
- Willwood Formation4
- Bridger Formation2
- Lower Variegated Sequence Formation1
- DeBeque Formation1
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The named rock units Diacodexis secans has been recovered from, largest first. Drawn where the rock is now, not where it formed. 1 occurrence has no formation on record, which is common for older literature.
Diacodexis secans and its relatives
EoceneWhere Diacodexis secans and its relatives were recorded in the Eocene.
Found in the same rock
247 taxa- Hyopsodus wortmani18 sites
- Bunophorus sinclairi15 sites
- Lambdotherium popoagicum14 sites
- Microsyops scottianus13 sites
- Esthonyx acutidens11 sites
- Hyopsodus11 sites
- Hyracotherium vasacciense11 sites
- Paramys copei11 sites
- Phenacodus vortmani11 sites
- Coryphodon10 sites
- Heptodon calciculus10 sites
- Heptodon posticus10 sites
- Perissodactyla10 sites
- Didymictis altidens9 sites
- Hyopsodus walcottianus9 sites
- Vulpavus canavus9 sites
- Cantius nunienus8 sites
- Knightomys depressus8 sites
- Absarokius abbotti7 sites
- Hyopsodus paulus7 sites
- Leptochoeridae7 sites
- Paramys excavatus7 sites
- Phenacodus7 sites
- Protorohippus venticolum7 sites
The Paleobiology Database records 39 sites for Diacodexis secans, and this reads all of them. The number is how many of those sites it was catalogued from too. The 24 sharing the most are listed.
This is not a list of everything alive at the time. It is only what has come out of the same ground as this animal and been written down.
Entered from
8 references- Revision of the Eocene Wind River Faunas, Early Eocene of Central Wyoming. Part 7. Revision of Diacodexis (Mammalian, Artiodactyla)25
- Stratigraphy, mammalian paleontology, paleoecology, and age correlation of the Wasatch Formation, Fossil Butte National Monument, Wyoming5
- Synonymies and reidentifications of North American fossil mammals5
- Faunal Zonation of the Willwood Formation in the Central Bighorn Basin, Wyoming3
- Magnetostratigraphy across the Wasatchian-Bridgerian boundary (early to middle Eocene) in the western Green River Basin, Wyoming1
- Wapiti Valley Faunas: Early and Middle Eocene Fossil Vertebrates from the North Fork of the Shoshone River, Park County, Wyoming1
- Geology, vertebrate fauna, and paleoecology of the Buck Spring Quarries (early Eocene, Wind River Formation), Wyoming1
- Early Eocene artiodactyls from the San Juan Basin, New Mexico, and the Piceance Basin, Colorado1
Each of the 42 occurrences read was entered from one of these publications, ordered by how many each accounts for. This is not a search for papers mentioning the name. Entries link to doi.org where the Paleobiology Database holds an identifier, and to its own record where it does not. Relayed as the Paleobiology Database holds them, not checked against what they resolve to.
Media and terms
Media content1

Picture of Diacodexis secans
- Source
- iDigBio
- Credit
- via iDigBio
- Licence
- not stated by the source
- Commercial use
- cannot be read from the licence given — check the record
No 3D scan was found. Smithsonian Open Access, MorphoSource and Sketchfab were all searched.
This is what the site found, which is not the same as what exists.
Keep going
What may have been alongside itDiacodexis through timeFormations of the EoceneThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. (Cope 1881)